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7.0 GOVERNMENT AGENCY RESEARCH <br /> 7.1 EPA Databases <br /> The California Environmental Protection Agency (EPA) manages contaminated <br /> sites through two sub-agencies: the State Water Resources Control Board <br /> (SWRCB) and the Department of Toxic Substances Control (DTSC). The <br /> SWRCB's GeoTracker database includes underground storage tank (UST) sites, <br /> leaking underground storage tank (LUST) sites, cleanup program sites, and land <br /> disposal sites. The database can be searched by reviewing two lists, the <br /> Permitted Underground Storage Tank (UST) Sites list and the Cleanup Sites list. <br /> DTSC's EnviroStor database includes Federal Superfund sites, State response <br /> sites, voluntary cleanup sites, school cleanup sites, corrective action sites, and <br /> permitted hazardous waste facilities. <br /> Live Oak searched both databases on December 3, 2019 for any listed sites <br /> within one-quarter mile of the Site. The subject Site was not listed on either <br /> database, and no listed facilities were identified within one-quarter mile. <br /> 7.2 Environmental Health Department Databases <br /> Live Oak reviewed the San Joaquin County Environmental Health Department's <br /> Hazardous Materials, Hazardous Waste Generators, Underground Storage <br /> Tanks, Aboveground Storage Tanks, Site Mitigation, and Site Mitigation and <br /> LOPs lists, dated August 2019, for facilities of concern within one-quarter mile of <br /> the Site. The subject Site was not included on any database, and no listed sites <br /> were identified within the search radius. <br /> Live Oak searched the San Joaquin County Haz Mat Viewer on December 3, <br /> 2019 for the Site and any nearby facilities with hazardous materials inventories. <br /> The Site was not marked as a hazardous materials facility, and no such facilities <br /> were identified within one-quarter mile of the Site. <br /> Live Oak reviewed the San Joaquin County Environmental Health Department's <br /> maps of Nitrate — Land Use Data and DBCP— Land Use Data dated February 20, <br /> 2019. According to the maps, no wells in the immediate vicinity of the Site have <br /> been tested for either constituent. The closest two wells are approximately two <br /> miles from the Site. As the nitrate map shows (Plate 5), nitrate was detected in <br /> one of the wells at a concentration between 0.1 and 5.0 mg/L-N; no nitrate was <br /> detected in the second well. As the DBCP map shows (Plate 6), no DBCP was <br /> detected in either well. The Maximum Contaminant Level (MCL) set by the US <br /> EPA for nitrate is 10 mg/L-N; the MCL for DBCP is 0.2 ug/L. <br /> LOGE 1949 5 <br />